Electrical switch.



No. 747,537. PATENTED DEC. 22, 1903.

G. J. CROSSLAND. I' ELECTRICAL SWITCH.

APPLICATION FILED JULY 12, 1902.

PATENTBD DEC. 22, 1903.

A C. J. CRCSSLAND. ELECTRICAL SWITCH.

APPLIATION FILED JULY 12, 1902.

N0 MODEL.

TH: cams paens co., wom-uma.. wAsHmGTN, n. c..

GEORGE J. OROSSLAND,

' 'Patented inecmber 22, 190s.

PATENT OFFICE.

OF MOBILE, ALABAMA.

ELECTRIVCVAL SWITCH.

SPECIFICATION forming part of LettersPatent No. 747,537, dated December22, 1903- Application filed July 12, 1902.

Ycom pactly arranged and associated with simple means connected with theswitch for operating the same. n

Another object is to provide novel and efficacious means mounted uponthe car to close thecircuits of which the magnets form a part. Thepreferred embodimentof the invention is illustrated in the accompanyingdrawings,

. means being diagrammatically illustrated.

Fig. 2 is a view illustrating one of the circuitclosures and the mannerof mounting the same upon a car, the electrical connectionsbeingalsoillustrateddiagrammatically. Eig.V 3 is a longitudinalsectional view through the actuating mechanism. Fig. 4: is a transversesection.

Similar characters of reference designate corresponding parts in all thefigures of the drawings.

In the present embodiment the switch is shown in connection with anelectrically-operated road employing an overhead trolleywire. The tracksare designated by the reference-numeral 10, theV trolley-wire by 11,said tracks and wire serving, respectively, as conductors to which thepoles of the generator are connected, said generator being illustrateddiagrammatically at A in Fig. 2. Branch tracks 10a are illustrated inFig. 1, which lead from the main line, and a stubswitch 12, arranged atthejunction of the inner rails, controls the directions of the carspassing over the main tracks 10, as Will be readily understood. Themeans for actuating the switch constitutes the subject-matter Serial No.115,363. (No model.)

of this invention and is constructed and arranged as follows:

A casing 13 is arranged between the tracks contiguous to the switch 12,being preferably fitted between a pair of ties, as shown. Within thiscasing are fixed a pair of separate oppositely-arranged electromagnets14, suitably secured to a frame 15, that is fastened within the casing.These electromagnets each comprise a pair of electrically-connectedcoils 14, wound upon suitable cores, the poles 16 of which are arrangedat the ends opposite the poles of the other magnet. These magnets arespaced a slight distance apart and arranged side by side. They each haveseparate connections 17 with the rails, their other terminals 18 beingconnected to separate contact-plates 19, arranged between the rails somedistance from the switch, said contacts being preferably secured to oneof the ties, as shown in Fig. 1. As a result it will be seen that eachmagnet has a separate open circuit, and these circuits are arranged tobe completed by independent closers fixed upon the car and operable bythe motorman. Their construction is clearly illustrated in Fig. 2, andas both are similar in all respects but one need be described.

Spaced brackets 20 are attached to the un- Vder side of the frontplatform, and a lever 2l is pivoted intermediate its ends to one of saidbrackets, said lever being provided with a down'turned terminal 22, theend of which has a roller 23, that coacts with the contactplate 19 ofthe corresponding circuit. This downturned terminal is provided with asuitable insulated joint 24, and an electrical connection 25 is madebelow this joint with the trolley-pole, and consequently with thetrolley-wire 11. An actuating-lever 26 is pivoted intermediate its endstothe other bracket, said lever having one end coacting with theadjacent end of the contact-lever, its other f endV being npturned, asshown at 27, and projecting through the platform, being provided with-asuitable foot-piece 28. The contactlever is normally held elevated by acoiled spring 28a, interposed between its upper end and the under sideof the car platform. A s a result it will be seenthat when the motormandepresses one of the actuating-levers the roller 23, located upon thedownturned ICO quently moving the rod and throwing the terminal of thecorresponding contact-lever, will be brought into engagement with thecontact-plate beneath it, and as a result an electrical circuit will becompleted of which one of the magnets forms a part, thereby energizingthe same.

Associated with the above-described mechanism are actuating meansconnected with the switch l2. This means is shown in the form of a rod29, slidably mounted in the casing between the magnets and projectingbeyond the same beneath the switch-piece. Said projecting end isprovided with an upstanding pin 80, that is jcurnaled in the switchcontiguous to its free end, as illustrated in Fig. 1. The rod,furthermore, carries oppositely-disposed armatures 31, which arearranged at opposite ends of the magnet and coact with theoppositely-disposed poles thereof.

It is believed that the operation of the switch will be apparent. Shouldsaid switch be in the position shown in Fig. 1, it being necessary toswitch an approaching car onto the branch line, it is only necessary forthe motorman to depress the propercloser,where upon, when said closerpasses over its coacting contact-plate the circuit will be completed,thereby energizing the proper magnet. As a result the armature coactingwith said magnet will be attracted to it, conseswitch. On the otherhand, after the switch is thrown and a main-line car approaches it isonly necessary for the motorman to depress the opposite contact,consequently energizing the other magnet and again closing It willtherefore be seen thatl the switch.

extremely simple switching mechanism is provided which will obviate theservices of a switchman and avoid the necessity of the motorman orconductor leaving or stopping the car. Furthermore, this mechanism ispositive and certain in its action, is very compact in structure, and isout of the way of street traftic.

From the foregoing it is thought that the construction, operation, andmany advantages of the vherein-described invention will be apparent tothose skilled in the art without further description, and it will beunderstood that various changes in the size, shape, proportion, andminor details of construction may be resorted to without departing fromthe spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination with a track provided with a switch, of means foroperating the switch, said means including a contact-lever and anoperating-lever arranged to be mounted intermediate their ends upon acar, the end of one lever coacting with the end of the other lever, anda spring arranged against one of said coacting ends and normally holdingboth levers in inoperative positions.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

GEORGE J. CROSSLAND.

Witnesses:

W. H. PADGETT, CHARLES T. N. WHITESPUNNER.

